Stove construction



Feb. 19, 1935.

G.. E. PICKUP STOVE CONSTRUCTION v Filed Juay`14, 1952 2 Sheets-.Sheet 2 Petented Feb. 19, 193s PATENT OFFICE s'rovE CONSTRUCTION George E. Pickup, Newark, Ohio, assignor to The Wehrle Company, Newark, Ohio, a corporation of Ohio Application July 14, 1932, Serial No. 622,469

23 Claims. (Cl. 126-39) The invention relates to cook stoves or ranges and concerns more especially an improved stove construction.

The object of the invention is to provide a practical construction for gas ranges and similar Iso stoves permitting of manufacture at a substantially lower cost than has heretofore been possible and at the same time attaining a high degree of rigidity coupled with a neatl and attractive appearance.

In the accompanying drawings,

Figure 1 is a front elevational view of `a stove body with portions broken away and shown in section to illustrate details of construction.

Fig. 2 is a front'elevational view of a separately constructed oven unit, the upper portion of the topV wall of the same being broken away and shown in section. l v

Fig. 34is a transverse vertical sectional view through the oven section.

Fig. 4 is a fragmentary perspective view of a separately constructed unit for the cooking top section of the stove and also illustrating the means for connecting this unit with the oven unit. e

Fig. 5 is a fragmentary perspective viewA illustrating the formation of the top frame for the cooking top section. p

Fig. 6 is `a fragmentary plan section showing a detail of construction.

Fig. 'l is a fragmentary perspective View of a front frame member employed in connecting the two major units of the stove together. y

In carrying outl the invention, I construct a stove body from a plurality of separately formed units consisting in the present instance of two "major units respectively providing an oven section and a cooking top section, together with sev-v top plate 10, and an inner rear plate 11; and an outer section providing opposite side plates 12 and 13, an outer top plate 14, and an outer rear plate 15. Of the inner oven section the side plates 8 and 9 and top plate 1o are formed from a single sheet of retal bent into inverted U-form, and the inner rear plate 11 is formed from a separate sheet flanged at its rear edge as at 16 and 55 secured by-spot welding to the flanged rear edge 17 of the inner vertical wall plates.

of the inner top plate 10. The lower edges of the inner vertical wall plates terminate short of the lower edges of the outer vertical plates and are 'each formed with an outturned spacing flange 17 adapted to-engage with the corresponding outer wall plate.-

The outer wall sectionl of the oven also has its side and top plates formed from a single sheet of metal of inverted U-form, the several plates having inturned flanges at their rear edges to which the marginal edge portions of the outer rear plate 15 is secured as by spot welding. Near their lower edges and upon theinner sides thereof the outer vertical plates whichdepend below the lower edges of the inner vertical plates have an angle iron frame 18 spot welded thereto in position to be engaged by the lower anged edges The frame 18 thus provides seats for the inner wall section of the oven and alsolends rigidity thereto.

It will be observed that the constr-uctionA thus provides hollow rear and side walls for thereception of a suitable insulating material 19, and the top wall includes an intermediate plate v20 spaced downwardly from the outer top plate 14 so as to receive insulating material 21. Said intermediate plate is spaced upwardly from the. inner. top plate 10 to form a ue passage 22ccm- !nunicating at its forward end with the interior of the main oven as shown ,in Fig. 3, and at its' rear end with a suitable opening (not shown) at the rear of the stove. -To'space the intermedi- "ate plate from the inner top plate 10, angle bars 23 arev employed, (Fig. 2) ,-these being preferably spot welded to the inner top plate 10.

The front frame of the oven unit, providing inwardly offset seats for the usual doors 24 and 25,

is formed' integral with the outerwall section by appropriately bending the forward edge portions from the sheet forming this section. As herein shown, such marginal edge -portions are bent from the side and top plates rst inwardly to form the outer front face 26 of the frame, then rearwardly and again'inwardly to form an inwardly Offset closure seat 27, and finally rearwardly to provide anges 28 fltting snugly within the side and top plates of the inner oven wall section. At the upper forward corners of the oven section, the flanges are appropriately mitered as shown clearly in Fig. 2.

A central hollow partitioriwall formed from two, plates 29 and 30 divides the oven section oven. This wall is supported at its opposite side 'into an upper baking oven and a4 lower broiler edges by angle bars 31 spot welded to the inner side plates 8 and 9 of the inner oven section, and for this purpose the side edge portions of the upper plate 29 of the partition wall are extended beyond the plate 30l and formed with 4downturned flanges 32 resting upon the angle bars 31. The forward edge of the partition wall is formed to provide a flat front face 33 as shown in Fig. 3 which is disposed in the same vertical plane as the inwardly offset closure seating face 27 of the front frame, thus cooperating therewith to form the door seats.

Referring now to Figs. 4 to 6, the'cooking top unit is in the main formed from a single sheet of metal bent to provide outer and inner side plates 34 and 35, respectively, and a` rear plate 36. In

addition, a cooking top frame is formed in partout of the sameV sheet of metal and this is accomplished by bending the upper marginal edge portions of the vertical plates inwardly to form top marginal faces 37 and thence downwardly and inwardly to form flanges 38 offset downwardly from the top faces 37.v In forming the top frame, the metal is, of course, appropriately bent to form mitered rear corners.

At their forward edges, the side plates 34 and 35 are shaped to form the end members of a front frame for the cooking top section, which frame members provide closure seating faces 39 and 40. A manifold cover plate 41 is secured as by means of screws 42 (Fig. 5) to the upper portions of said side frame members.

In forming the end frame members of the cooking tcp section, the forward edge portion of the side plate 34 is bent in a manner similar to that employed in forming the top frame. Thus, the forward edge portion of the plate 34 is first bent inwardly to form a front face flange 43 and thence rearwardly, and again inwardly to form the flange 40. The opposite frame member 39 is formed from the forward edge of the opposite side plate 35 by bending the marginal edge portion thereof inwardly and thence rearwardly as shown in Fig. 5. It will be observed that the flanges 39 and 40 are disposed in the same vertical plane.

The manifold cover plate 41 has its upper portion bent inwardly and downwardly to'form in effect a front frame member 44 for the cooking top section and thence is bent rearwardly to provide a flange 45 cooperating with the flanges 38 to form a rectangular seat for the usual grid 331. The ends of the ange 45 thus formed are secured as by means of screws 46 to the forward ends of" the side flanges 38 of the top frame see Figs. 5 and 6).

The front face of the manifold cover plate is disposed-flush with the frontface of the end flange^43 of the outer vertical frame member and its lower edge is bent inwardly and downwardly to form a flange 47 (Fig. 5) which is secured to the flanges 39 and 40 by the screws 42. The cover plate is suitably apertured for the passage of gas cocks 48 controlling the supply of gas to the burners from a manifold 49 (Fig. 1), the latter having its ends secured to the front flanges 39 and 40 and thus tying the oppositeside plates of the burner box together.

After the two major units have been completely constructed and separately enameled, they areY vthe side plate 12 of the oven unit as shown in Figs. 1 and 6. Because of this plate to plate contact, the plate 35 of the cooking top section is, for the sake of economy of materials, cut

away in its central portion as shown at 50 (Fig. 4), the portion thus cut away being employed in making other parts of the stove.

In fastening the two major units together, a plurality of fastening screws 51 are inserted through apertures 52 near the upper edge of the inner side plate 35 of the cooking top unit and into the adjacent wall plate 12 of the oven unit; and the lower edges of the two contacting plates are secured by means of bolts 53. Near the rear edges of said plates, the bolts 53 extend through upright flanges 54 of two corner braces 55 having upstanding rear flanges 56 respectively spot welded to the plates and 36 of the two units.

As a further means for tying the two units together rigidly and for forming the lower front frame member for both units, I employ a front rail 57 (Figs. 4 and 7). This rail is of double angular formation providing a lower front bar 58, and a rabbet groove forming a seat 59 offset rearwardly fromV the front bar 58 and terminating at its upper edge in-'arearwardly extending top flange 60. The ends of the front bar 58 are inwardly offset as at 61 (Fig. 7) to receive the lower'ends of the front anges 26 and 43 of the oven and cooking top units respectively and similarly the seating surface 59 of the rail is de-y pressed as at 62 to receive the lower ends of the she flanges 27, 39 and 40 secured to the rail by means of bolts 63 entered through apertures 64. To receive the upper portion of the front rail the side plate 35 is notched at its lower forward vedge as'shown at 64 (Fig. 4). The plate 12 is similarly notched (Fig. 3).

At each end the front rail 57 has a rearwardly extending arm 65 and in the corners formed by said arms aresecured corner brackets 65n in the form of triangular plates each having an upstanding front flange 66 spot welded to the inner side of the bar 58 and an upstanding side flange 67 in contact with the inner side of one of the arms 65. Said side flanges and arms are correspondingly apertured to receive bolts 68 whereby the ends of the front rail, the corner brackets, and the end plates 13 and 34A may be rigidly fastened together.

In addition to rigidifying the structure, the front corner `brackets 65a provide rigid corner plates to which the upper ends of suitable front legs (not shown) may be attached, each of the brackets being for this purpose provided with a plurality` of bolt holes 69. To provide means for mounting the rear legs of the stove, cornerl brackets 70 (Figs.'1 and 2) are employed. These are in all respects substantially sirriilartc'l'A the front corner brackets 65a except that both 'side anges thereof are spot welded to the Avertical plates forming the rear end corners of the body.

The lower portion of the cooking top section of the body is adapted to receive a utility drawer 71 having a front wall or closure member 72 which is adapted to seat at opposite sides against the flanges 39 and 40 and against the flanges 47 and 59 at the top and bottom. The drawer may conveniently be mounted for front to rear sliding movement by means of tracks 73 spot welded to the inner sides of the plates 34 and so as to provide inwardly projecting guide bars 74 upon which the bottom side edges of the drawer may rest with the underside of the drawer provided with retaining members 75 spot welded in position. f

A splasher back plate 76 may besuitably se cured to the Aupper rear edge of the cooking top section and to the upper left hand edge of the enameled separately and subsequently securedy together; also to the advantageous manner in which the two `sections are secured together and to the advantageous features of the construction employed in forming the various units.

I claim as my invention:

1. A stove having a body comprising two separately constructed units one providing an oven section and the other a cooking top section and each having side plates secured together in face to face relation and outer end walls, and a front rail having its opposite ends secured to said end walls.

2. A stove having a body comprising 'two separately constructed units one providing an oven section and the other a cooking top section and each having opposite side plates with one side plate of 'the oven unit secured in face to face relation to the 'opposite side plate of the cooking top unit, and a front rail extending along the lower front edges of the two units thus secured together, all of said side plates being secured at their lower forward edges to said front rail.

3. A stove having a body comprising two separatelyv constructed units one providing an voven section and the other a cooking top section and each having opposite side plates with one side plate of the oven unit secured in face to face relation vto the opposite side plate of the cooking unit, the forward edges of said side plates having flanges forming front frame faces, and a front rail secured at spaced points to the lower ends of said flanges. v

4. A stove having a body comprising two separately constructed units secured together side by side and one providing an oven section and the other a cooking top section, each of said units having sheet metal wall plates with their forward edge portions bent '-to fonn front frame members and inwardly offset closure seats, and

va front rail extending along the lower front edges of the two units and providing a lowervfront frame member also having inwardly offset closure 5. A stove havinga body comprising two separately constructed units secured together side by side and one providing an oven section and the other a cooking top section, each of said units having sheet metal wall plates with their forward edge portions bent to form front frame members and inwardly oiset closure seats, and a front rail extending along the lower front edges of 'the two units 'andv providing a lower front frame member also having inwardly offset closure seats, the adjoining wall plates of the two units having their forward edges notched to receive the inwardly offset portion of the front frame member.

6. A stove body havinga main section with two opposite side wall plates of sheet. metal and each having forward edge portions bent to provide a front frame face and a rearwardly offset closure seating flange, and a lower, front` rail connecting said opposite front plates .and shaped to provide a front frame face and a rearwardly offset closure seat.

'7. A stove body having a main section with three wall plates formed from a single sheet of metal bent into U-form to provide two side wall plates and another wall plate, said side plates having their forward edge portions bent to provide a front'frame face and a rearwardly offset" .closure seat, and a front rail connecting said side plates and also shaped to p-rovide a front frame face and a rearwardly offset closure seat.

8. A stove body including a cooking top section `having a side wall plate formed from a flat sheet of metal and having 4its upperedge portion bent inwardly to form a top frame face and thence downwardly and inwardly to form a seating flange for a cooking top.` i

9. A stove body including a cooking top section having rear and. side wall plates each formed from sheet metal and having its upper edge portion bent inwardly to form a top frame face, and thence downwardly and inwardly to form a seat for the cooking top.

v 10. A stove body including a cooking top section having a rear wall plate and two sidewall plates all formed from a single sheet of metal b ent into U-form with the. upper edge portion of cach of said plates bent to form a top frame face and then downwardly and inwardly to form a grid scat, and a front plate secured at its opposite ends to the forward edges of the side plates and having an upper edge portionbent to form' a top frame lmember with an inwardly and downwardly offset grid seat.

having a rear wall plate and two side wall plates with the upper edge portions thereof bent to form top frame faces and downwardly and inwardly offset grid seating flanges, and a front plate secured at the opposite ends to the forward edges of the side plates and having an upper edge portion bent tovform a top frame member with an inwardly and downwardly offset grid seating flange, the last mentioned flange being secured at its opposite ends-to the forward ends of the seating flanges of the side plates.

12. A stove body including a cooking top section having two side wall plates with their forward edge portions bent to form a front frame member with in inwardly and rearwardly oifset closure seat, a lower front rail secured to the lower front frame members and shaped to provide a rearwardly offset closure seat, and a cover plate seous side plates thereof and rigidly secured to' gether with said contiguous side plates interposed between them, and a lower front rail coextensive with the two unitsv and cooperating with saidcorner braces to hold the two units rigidly in assembled relation. v

14. A stove having a body comprising two separately constructed units each having two spaced sid plates and a rear plate connecting the side plates together at their rear edges, and means for securingthe two units together side by side with opposite side plates contiguous including a lower rigid front rail coextensive with the two units and rear corner braces, said braces being rigidly secured to the respective units adjacent the con- 'tion each having two side plates and a top plate formed from a single sheet of metal, and a rear plate secured to the rear edges of said top and side plates, the plates of said inner section being spaced inwardly from the corresponding plates of the outer section and the forward edge portions of the side and top plates of the outer section being bent to form a front frame.

16. A stove body having an oven unit comprising an inner oven section and an outer oven section each having two side plates and a top plate formed from a single sheet of metal, and a rear plate secured to the rear edges of said top and side plates, the plates of said inner section being spaced inwardly from the corresponding plates of the outer section and the forward edge portions of the side and top plates of the outer section being bent to form a front frame, and a front rail secured to the lower forward edges of the outer side plates to form a lower front frame member.

17. A stove body`having an oven unit comprising an inner oven section and an outer oven section each having two side plates and a top plate, the top and side plates of the outer section having their forward edge portions bent to form a frame front face and a rearwardly offset closure seat.

18. A stove body having an oven unit comprising an inner over section and an outer oven section each having-two side plates and a top plate the top and side plates of the outer section having forward edge portions bent to form a frame having a front face and a rearwardly offset seating ange, and a front rail having a front face and rearwardly offset closure seating flanges to which the lower ends of the side seating flanges are secured.

19. A stove body having an oven unit comprising an inner oven section and an outer oven section each having two side plates and a top plate formed from a single sheet of metal bent into U-form, the top and side plates of the outer oven section having their front edge portions rbent inwardly to form a front frame with a rearwardly projecting flange fitting into and secured tothe front edge portions of the top and side plates of the inner section.

20. A stove body having an oven uit comprising an inner oven section and an outer oven section each having two side plates and a top plate formed from a single sheet of metal bent into U-form, the top and side plates of the outer oven4 section having their front edge portions bent inwardly to form a front frame with a rearwardly projecting flange fitting into and secured to the front edge portions of the top and side plates of the inner section, said bent portions of the outer section also including between said front frame face and said rearwardly projecting flange an inwardly projecting portion forming a closure seating surface.

21. A stove body having an oven unit comprising an inner oven section and an outer oven section each having two side plates and a top plate formed froma single sheet of metal bent into U-form. the top and side plates of the outer oven section having their front edge portions bent inwardly to form a front frame with a rearwardly projecting flange fitting into and secured to the front edge portions of the top and side plates of the inner section, said bent portions ofthe outer section also including between said front frame face and said rearwardly projecting flange an inwardly projecting portion forming a closure seating surface, and the top wall of the oven section having an intermediate plate engaging said rearwardly projecting portions of the front frame.

22. A stove having an oven section including a top plate having its forward edge portion bent to form a front frame face and a ange projecting rearwardly from the inner edge of said face, and an inner top plate secured at its forward edge to said rearwardly projecting flange and in spaced relation to the outer top plate. l

23. A stove having a body comprising two separately constructed units adapted to be secured together side by side one providing an oven section and the other a cooking top section, flanged means on the front edges of said sections, means for securing the sections together rearwardly of the body, a flanged front rail extending along the lower front edges of said two sections in interengagement with said flanged means on the sections and rigidly secured thereto so as further to tie the two sections together, and leg-anchoring means on said rail at its opposite ends.

GEORGE E. PICKUP. 

